| Navy | The Royal Navy |
| Type | Submarine |
| Class | A |
| Pennant | P 421 |
| Built by | Cammell Laird Shipyard (Birkenhead, U.K.) |
| Ordered | 7 Apr 1943 |
| Laid down | 16 Jan 1944 |
| Launched | 12 Apr 1945 |
| Commissioned | 2 May 1946 |
| Lost | 16 Apr 1951 |
| History | Lost in a diving accident on 16 April 1951. She was found in June 1951 67 miles south west of St Catherines Light. |
Commands listed for HMS Affray (P 421)
Please note that we're still working on this section
and that we only list Commanding Officers for the duration of the Second World War.
| Commander | From | To | |
| 1 | A/Lt.Cdr. Ernest John Donaldson Turner, DSO, DSC, RN | 2 Apr 1945 | 12 Mar 1946 |
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